Individual provider Active NPI

William Keith Lagasse, LCSW

  • Clinical Social Worker
  • Lewiston, ME
National Provider Identifier
1871716522
Registry record updated May 8, 2008
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
LC11562 Issued in ME
Practice address
105 Middle St Ste 2
Lewiston, ME 04240-7037
Phone
(207) 576-9645
Fax
(207) 784-6021
NPI assigned
Apr 11, 2007
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 8, 2008

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X LC11562 ME Primary

Addresses

Primary practice location

105 Middle St Ste 2
Lewiston, ME 04240-7037

Mailing address

105 Middle St Ste 2
Lewiston, ME 04240-7037
Phone (207) 576-9645

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20080725000108 ME Practitioner - Clinical Social Worker 9537232491 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Clinical Social Worker
Education
Other, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
MainehealthGroup PAC ID 7517860588, 2,616 clinicians
The Counseling Center of Nashua IncGroup PAC ID 3274523758, 250 clinicians

Practice addresses (Care Compare)

165 Lancaster St
Portland, ME 04101-2406
Phone (207) 874-1030

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 885-9905

707 Sable Oaks Dr
Suite 230
South Portland, ME 04106-6954
Phone (603) 883-0005

Merit-based Incentive Payment System (MIPS)

Final score
97.93 of 100Reported as apm
Quality
83.31
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
LC11562MEMDClinical Social Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Mainehealth Current Accepting new patients
The Counseling Center of Nashua Inc Clinical CurrentSince Sep 20, 2025 Accepting new patients
Mainehealth CurrentSince Dec 1, 2018 Accepting new patients
Mainehealth CurrentSince Dec 1, 2018 Accepting new patients
Tri-County Mental Health Services PastSince Jul 28, 2005 Accepting new patients
Spurwink Services Incorporated PastSince Mar 17, 2025 Accepting new patients
Transitions Counseling, Inc. Past Accepting new patients

Locations

11 Medical Center Dr
Brunswick, ME 04011
Phone (207) 373-9417

53 Baxter Blvd
Portland, ME 04101
Phone (207) 245-1648

22 Bramhall St
Portland, ME 04102
Phone (207) 662-2179

707 Sable Oaks Dr
Ste 230
South Portland, ME 04106
Phone (207) 774-8700

78 Atlantic Pl
South Portland, ME 04106
Phone (207) 661-6654

1 Main St
Nashua, NH 03064
Phone (603) 689-7978

Organizations & group practices 7

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1176249600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1210204800000",
    "number": "1871716522",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "105 MIDDLE ST STE 2",
            "city": "LEWISTON",
            "state": "ME",
            "postal_code": "042407037",
            "telephone_number": "207-576-9645",
            "fax_number": "207-784-6021"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "105 MIDDLE ST STE 2",
            "city": "LEWISTON",
            "state": "ME",
            "postal_code": "042407037",
            "telephone_number": "207-576-9645",
            "fax_number": "207-784-6021"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LAGASSE",
        "first_name": "WILLIAM",
        "middle_name": "KEITH",
        "credential": "LCSW",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-04-11",
        "last_updated": "2008-05-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "ME",
            "license": "LC11562",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lewiston, ME

Sources for this page

Verify at the official NPI Registry.